Javon Wilson, the congressman’s grandson, was home with his siblings Friday night when the two alleged assailants came to the house. They wanted to retrieve a pair of sneakers one of them lent to Wilson’s younger brother in exchange for a pair of pants.

The two pushed their way into the house after Javon’s brother refused to return the sneaker until he received his pants. As the argument intensified, one of the teens pulled out a gun and made threats. In the end, one of the intruders fatally shot Javon.

The Chicago Tribune identified the alleged shooter as a 16-year-old male, Tariq M. Harris, and the other accused assailant as Dijae T. Banks, a 17-year-old female. Authorities charged the pair as adults.

According to the newspaper, the teens fled the scene immediately after the shooting but later turned themselves in at the Deering District police station.

Davis said the city’s epidemic of gun violence hit close to home for him.

“We have to find a way to get some of the guns out of our environment,” he told the ABC News affiliate, WLS-TV. “I have spoken at many teenage funerals. I have comforted many families but never quite this close.”

He plans to “devote” his time and life to preventing these tragic shootings.